Grist is spreadsheet software using Python as its formula language. Prior to 1.7.15, the GET /forms endpoint read table and column metadata without applying the document's access rules and did not check that the requested section was actually a form. A user with only partial read access, including public access on a publicly viewable document, could request the metadata of any widget and reveal table and column structure that access rules would otherwise hide, even in documents that contain no forms. This issue is fixed in version 1.7.15.
CVE-2026-55664
MEDIUMPre-NVD 4.34.3—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EPSS
- 15.3%
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
Advisory Details (3)
Auto-updated Jul 10, 2026Patch available. Sources: github_commit, github_release, github.
github Patch Available
Insufficient access control in the /forms endpoint exposes table metadata · Advisory · gristlabs/grist-core · GitHub
https://github.com/gristlabs/grist-core/security/advisories/GHSA-w2hc-w6cg-xvh9github_release Patch Available
v1.7.15
Patch available: gristlabs/grist-core v1.7.15
https://github.com/gristlabs/grist-core/releases/tag/v1.7.15github_commit Patch Available
commit 14694156fe99 (gristlabs/grist-core)
Patch available: gristlabs/grist-core v1.7.15 (contains commit 14694156fe99)
https://github.com/gristlabs/grist-core/commit/14694156fe99c438c5f7a452ad367e933bb194dbWeakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-12 21:49 UTCEG score recompute
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 21:26 UTCEG score recompute
- 2026-07-10 21:03 UTCEG score recompute
- 2026-07-10 21:02 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-200
Frequently asked(5)
What is CVE-2026-55664?
CVE-2026-55664 is a medium vulnerability published on July 10, 2026. Grist is spreadsheet software using Python as its formula language. Prior to 1.7.15, the GET /forms endpoint read table and column metadata without applying the document's access rules and did not check that the requested section was actually a form. A user with only partial read access, including…
When was CVE-2026-55664 disclosed?
CVE-2026-55664 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55664 actively exploited?
CVE-2026-55664 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-55664?
CVE-2026-55664 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-55664?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55664, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-55664
Is Your Infrastructure Affected by CVE-2026-55664?
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